CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues [Abstract]
Total operating revenue	$ 7,493	$ 7,952	$ 7,933
OPERATING EXPENSES
Cost of services and products (exclusive of depreciation and amortization)	3,229	3,525	3,486
Selling, general and administrative	1,188	1,181	1,226
Gain on sale of business	(123)	0	0
Loss on disposal group held for sale	616	0	0
Operating expenses - affiliates	659	497	368
Depreciation and amortization	1,534	1,717	1,689
Goodwill impairment	4,638	0	0
Total operating expenses	11,741	6,920	6,769
OPERATING (LOSS) INCOME	(4,248)	1,032	1,164
OTHER (EXPENSE) INCOME
Interest income - affiliate	62	65	51
Interest expense	(374)	(361)	(393)
Other income, net	23	47	50
Total other expense, net	(289)	(249)	(292)
(LOSS) INCOME BEFORE INCOME TAXES	(4,537)	783	872
Income tax expense	256	197	221
NET (LOSS) INCOME	(4,793)	586	651
Non-Affiliate Services
Revenues [Abstract]
Total operating revenue	7,266	7,729	7,725
Affiliate Services
Revenues [Abstract]
Total operating revenue	$ 227	$ 223	$ 208